NYC MASTER ELECTRICIAN EXAM 230
PRACTICE EVALUATION 2026 QUESTION BANK
FULL SOLUTION SET
◉ In the NEC the words ___________indicate a mandatory requirement.
Answer: Shall or shall not
◉ On a four wire Delta connected system with a midpoint of one
phase winding is grounded, only the conductor or bus bar having a
higher phase voltage the ground shall be durably and permanently
marked by an outer finish that is _______ in color or by other effective
means. Such Identification shall be placed at each point on the
system where connection is made if the grounded conductor is also
present..
Answer: Orange
◉ The required working space for access to live parts operating at
300 V to ground, where there are exposed live parts on one side and
grounded parts on the other side is ____________..
Answer: 3 feet 6 inches
◉ The dimensions of working space for access to live parts
operating at 300 V, nominal to ground, where there are expose live
parts on both sides of the workspace is________________..
,Answer: 4 feet
◉ 110.26 A1- Dead front assemblies working space.
Answer: 30" for non-electrical parts
36" for electrical parts
◉ The working space in front of the electrical equipment shall not
be less than _______wide, or of the width of the equipment, whichever
is greater..
Answer: 30"
◉ Large equipment.
Answer: 1200 A or greater and over 6 feet wide
◉ Large equipment means of egress.
Answer: Two means of egress 24" wide by 6.5 feet tall unless the
following condutions are met
1) unobstructed egress
2) Double the workspace
◉ Headroom shall not be less than _______..
,Answer: 6.5 feet or the height of the equipment
◉ Live parts of electrical equipment operating at ______volts or more
she'll be guarded against accidental contact or approved enclosures
or by any of the following means.
Answer: 50 volts
4) by elevation of 8 feet or more above the floor or other working
surface
◉ A fence shall not be less than ______feet in height.
Answer: 8 feet
◉ One entrance to enclosures for electrical installations as described
in 110.31 not less than _______wide and _________high shall be
provided to give access to the working space around the electrical
equipment.
Answer: 30 inches and 6.5 feet
◉ Network compartments shall have at least ________means of access.
Each door she'll have an access that leads to a legal exit..
Answer: Two
, ◉ Where rear access is required to work on deenergized parts on
the back of enclosed equipment a minimum working space of
__________horizontally shall be provided.
Answer: 30 inches
◉ All non-current carrying metal parts of electrical equipment and
all metal raceways and cable shall be solidly grounded and bonded
to all metal pipes in rails at the portal and the intervals not
exceeding _____________throughout the tunnel..
Answer: 1000 feet
◉ Manhole workspace for cabling-A clear workspace not less than
_______wide shall be provided were cables are located on both sides
and not less than _______were cables are only on one side..
Answer: 3 feet
2-1/2 feet
◉ Access to manhole dimensions. Rectangular access openings shall
not be less than _______. Round access openings in a manhole shall be
not less than ______inches in diameter.
Answer: 26" x 22"
26"
PRACTICE EVALUATION 2026 QUESTION BANK
FULL SOLUTION SET
◉ In the NEC the words ___________indicate a mandatory requirement.
Answer: Shall or shall not
◉ On a four wire Delta connected system with a midpoint of one
phase winding is grounded, only the conductor or bus bar having a
higher phase voltage the ground shall be durably and permanently
marked by an outer finish that is _______ in color or by other effective
means. Such Identification shall be placed at each point on the
system where connection is made if the grounded conductor is also
present..
Answer: Orange
◉ The required working space for access to live parts operating at
300 V to ground, where there are exposed live parts on one side and
grounded parts on the other side is ____________..
Answer: 3 feet 6 inches
◉ The dimensions of working space for access to live parts
operating at 300 V, nominal to ground, where there are expose live
parts on both sides of the workspace is________________..
,Answer: 4 feet
◉ 110.26 A1- Dead front assemblies working space.
Answer: 30" for non-electrical parts
36" for electrical parts
◉ The working space in front of the electrical equipment shall not
be less than _______wide, or of the width of the equipment, whichever
is greater..
Answer: 30"
◉ Large equipment.
Answer: 1200 A or greater and over 6 feet wide
◉ Large equipment means of egress.
Answer: Two means of egress 24" wide by 6.5 feet tall unless the
following condutions are met
1) unobstructed egress
2) Double the workspace
◉ Headroom shall not be less than _______..
,Answer: 6.5 feet or the height of the equipment
◉ Live parts of electrical equipment operating at ______volts or more
she'll be guarded against accidental contact or approved enclosures
or by any of the following means.
Answer: 50 volts
4) by elevation of 8 feet or more above the floor or other working
surface
◉ A fence shall not be less than ______feet in height.
Answer: 8 feet
◉ One entrance to enclosures for electrical installations as described
in 110.31 not less than _______wide and _________high shall be
provided to give access to the working space around the electrical
equipment.
Answer: 30 inches and 6.5 feet
◉ Network compartments shall have at least ________means of access.
Each door she'll have an access that leads to a legal exit..
Answer: Two
, ◉ Where rear access is required to work on deenergized parts on
the back of enclosed equipment a minimum working space of
__________horizontally shall be provided.
Answer: 30 inches
◉ All non-current carrying metal parts of electrical equipment and
all metal raceways and cable shall be solidly grounded and bonded
to all metal pipes in rails at the portal and the intervals not
exceeding _____________throughout the tunnel..
Answer: 1000 feet
◉ Manhole workspace for cabling-A clear workspace not less than
_______wide shall be provided were cables are located on both sides
and not less than _______were cables are only on one side..
Answer: 3 feet
2-1/2 feet
◉ Access to manhole dimensions. Rectangular access openings shall
not be less than _______. Round access openings in a manhole shall be
not less than ______inches in diameter.
Answer: 26" x 22"
26"
